Compare AI models

API pricingUSD per 1M tokens · lower wins
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
—$1.25
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
—$4.25
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page.
$0.15DeepSeek$1.25Meta
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$0.60DeepSeek$4.25Meta
$60.00DeepSeek$463Meta list price
Benchmarks
DeepSWE 1.1Agentic coding — Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better.
77%53.3%
Overview
CompanyDeepSeekMeta
Release dateOct 17 2026Jul 9 2026
AccessOpen WeightClosed
Model detailsView modelView model

Frequently asked questions

DeepSeek-V4.1-Flash-1017 leads Muse Spark 1.1 on 1 of the 1 benchmark they both report (DeepSWE 1.1). Only Muse Spark 1.1 has a verified first-party API price: $1.25 per million input tokens and $4.25 per million output tokens. No pay-as-you-go API rate is tracked for DeepSeek-V4.1-Flash-1017. Muse Spark 1.1 shipped 100 days before DeepSeek-V4.1-Flash-1017, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4.1-Flash-1017 is open weight, while Muse Spark 1.1 is closed.

On DeepSWE 1.1, DeepSeek-V4.1-Flash-1017 leads at 77% vs Muse Spark 1.1 at 53.3%.